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Magnetic dipole moment of a moving electric dipole
Magnetic dipole moment of a moving electric dipole

... where the first term is the magnetic field due to the dipole moment 21 m and the second term, which is symmetric in p0 and v, has a curl that is proportional to the displacement current of the electric quadrupole field that is created when the electric dipole’s location is off the origin, i.e. r0 6= ...
CHAPTER 27 SOURCES OF MAGNETIC FIELD • Magnetic field due
CHAPTER 27 SOURCES OF MAGNETIC FIELD • Magnetic field due

... there are attractive forces that tend to reduce the length of the coil. 2. Across a turn the currents are anti-parallel so there are repulsive forces that tend to increase the radius of the coil. ...
OEM Powerpoint Template Mst.
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... ● Min/max log of all real-time readings ● Interval logging, min/max/avg. of certain parameters. Interval length 1– 1440 minutes. (ex. min/max/avg of current every 5 minutes) ● Default logging loaded at factory, begins on power up Schneider Electric - Marketing – PowerLogic CM 3000 series Circuit Mon ...
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16ElectEnergycapac
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... between the plates. The constant is dimensionless and depends on the material. For dry air at 20'C, the constant is 1.0006. E. is the permittivity of free space. A is the surface area of one side of one plate which is opposed by an the equal area of the other plate and d is the distance between the ...
Do You Know Where Your Fault Currents are Flowing?
Do You Know Where Your Fault Currents are Flowing?

... Not knowing exactly what to do, the decision was made by others to turn off the ground fault function. For several years, the problem disappeared and the Vista Switches did not trip. Everybody involved in the project assumed that the problem had been solved. Then in the fall of 2012, a line to groun ...
Lecture 02-DC Motor
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... The speed of dc motor is controlled by varying the armature voltage Va using a variable voltage controller and keeping the flux in the motor constant. The lower the armature voltage on dc motor, the slower the armature turns and the higher the armature voltage, the faster it turns . Since an increa ...
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UNIT 6 DC Compound Wound Motor

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IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
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... the salient stator poles. Also the salient rotor poles are made up of steel laminations, without conductors or permanent magnets or cage. Due to this rotor structure, extremely high speed can be obtained as compared to rotors with magnets or windings. Secondly, the motor is cost-effective in compari ...
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DC MachinesPPT1 - Electrical and Computer Engineering

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... 1) RMS line voltage must be equal. 2) Both have same phase sequence. 3) Output phase angles are same. 4) Must have a slightly higher frequency for new generator. It will change slowly. ...
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AMT 109C Course Notes

... energy to complete the transition. All atoms are made up of three types of particles, Neutrons, Protons and Electrons. Neutron and protons make up the atom’s core, and the electrons orbit about the core in various “shell” levels. Electrons can be convinced to move from one atom to another. Electrons ...
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DC and AC Motor Drives

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... Relay Current (IR) = Actual Line Current (IL) / CT Ratio Multiples of A.T. = IR/A.T. Setting = IL/(CT Ratio x A.T. Setting) CT I L ...
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Why true-rms?

... speed motor loads can be difficult if you don’t have the right tools. New solid state motor drives and heating controls often conduct non-sinusoidal (distorted) current. In other words, the current occurs in short pulses rather than the smooth sine wave drawn by a standard induction motor. The curre ...
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... When two loops with or without contacts between them, affect each other through magnetic field generated by one of them – they are said to be magnetically coupled. Example of device using this concepttransformer. ...
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Supplement 1: Complete set of magneto static data
Supplement 1: Complete set of magneto static data

... Figure S6 displays the temperature dependence of the dielectric loss, which was deconvoluted to determine the temperature at which of the loss maximum occurs. For that purpose we found an analytical expression for the background (blue in Fig. S6) by interpolating between the red segments, also shown ...
Chapter 18: Magnetism
Chapter 18: Magnetism

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Electric machine

The academic study of electric machines is the universal study of electric motors and electric generators. By the classic definition, electric machine is synonymous with electric motor or electric generator, all of which are electromechanical energy converters: converting electricity to mechanical power (i.e., electric motor) or mechanical power to electricity (i.e., electric generator). The movement involved in the mechanical power can be rotating or linear.Although transformers do not contain any moving parts they are also included in the family of electric machines because they utilise electromagnetic phenomena.Electric machines (i.e., electric motors) consume approximately 60% of all electricity produced. Electric machines (i.e., electric generators) produce virtually all electricity consumed. Electric machines have become so ubiquitous that they are virtually overlooked as an integral component of the entire electricity infrastructure. Developing ever more efficient electric machine technology and influencing their use are crucial to any global conservation, green energy, or alternative energy strategy.
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